Analysis of the variation characteristics and influencing factors of sunshine duration in Heping County in the past 50 years
Guo Youfu1, Zeng Qinwen2,3, Xie Yunjie1, Liu Shiting1, Tao Jian1
1. Heping County Meteorological Bureau of Guangdong Province,Heping 517200; 2. Heyuan City Meteorological Bureau of Guangdong Province,Heyuan 517000; 3. Dongyuan County Meteorological Bureau of Guangdong Province,Dongyuan 517500
Abstract：In order to analyze the climate change trend in Heping County,the sunshine change in Heping County in 19682017 was analyzed by linear trend analysis,Mann-Kendall mutation test and sliding T-test method.The research results show that the sunshine duration in Heping County has changed significantly in 19682017,showing an overall decreasing trend,with a significant decrease in annual sunshine duration.The seasonal changes show a decreasing trend,mainly occurring in summer with a tendency rate of -3.122 h per year.The sudden change in sunshine duration occurred in 1993.The main reason for the decrease in sunshine duration is the increase in total cloud cover and low cloud cover.The research results can provide reference for weather forecasting work in Heping County.
郭友福, 曾钦文, 谢芸洁, 刘仕婷, 陶坚. 近50年和平县日照时数变化特征及影响因素分析[J]. 气象水文海洋仪器, 2024, 41(3): 67-70.
Guo Youfu, Zeng Qinwen, Xie Yunjie, Liu Shiting, Tao Jian. Analysis of the variation characteristics and influencing factors of sunshine duration in Heping County in the past 50 years. Meteorological Hydrological and Marine Instrument, 2024, 41(3): 67-70.
2024, Vol. 41 
